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D. WECK'BRLIN. PRINTING MACHINE.

No. 263,004. Patented Aug.22, 1882.

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UNITED STATES PATENT @criolla -DoM1NtoK wEoKnnLIN, on BROOKLYN, AssrGNon To n. non a oo., on

NEwYonK, N. Y.

PRINTlNe-MACHINE.

SPECIFICATION forming part of Letters Patent No. 263,004, dated August 22', 1882.l

Application med Marcil 15, .1551. (No model.)A

To all whom it may concern:

Be. it knownth at I, DOMINICK WEGKERLIN,

a citizen of the United States, residing in the city of Brooklyn, county of Kings, and State ot' New York, have invented certain new and useful Improvements in Printing-Machines,

. fullydescribed and represented in the following specification and the accompanying draw. ings, forming a part 'of the same.

1o This invention relates to that class of print ing-machines known as stop-cylinder presses,or such as are provided with an impression-cylinder which is driven 'in unison with the bed by means of a rack carried thereby, I5 and gearing with a toothed wheel secured to the cylinder-shaft during the printing operation, but which wheel is disconnected from `the rack, so as" to allow the cylinder to remain stationary while the type-bed runs back to have zo the form it carries inked.

.The invention consists in a novel constructionand arrangement of devicesfwhereby a toothed ,wheel running loose upon the impresf sion-cylinder shaft may remain constantly A geared with and lturned by. the bed-rack, and

withwhich the cylinder maybe connected, so as to turn duringtheprintingoperation, (which we shall call the printingrun,) and from which it may be disconnected, so as to remain sta- 3o tionaryduringtherun ofthe bed, during which its type or form is inked, (which we shall call the "inking-rumi) all of which is too particularly hereinafter set forth to need further preliminary description.

l3,5 Figure 1 is a side elevation of a printing-` press, and Fig. 2 a side elevation of the cylinder, its wheel, and one end of the bed and rack. In these views the bed isshown as having linishedits outward stroke orinking-run, at which 4o time the cylinder-wheel has just been coupled I to the cylinder, so that the cylinder may revolve during the reverse, forward, or printing run of the bed, when the cylinder and type-bed coact to perform the printing operation. Fig. 3 is a transverse sectional elevation, and Fig. et a longitudinal sectional elevation, of the parts shown .in Fig-3 in like adjusted positions. Fig. 5 is a side elevation, and Fig. 6 across-sectional elevation, showing the relation 5o of parts during the printing-run of the bed,

4side elevation, and Fig. l0 a cross-sectional elevation, partly showing the relation and position ofthe coupling devices ,during the ink-` 6o ing-run of thebed when thecylinderisstopped, and its wheel runs in a reverse direction, still geared to the bed-rack.

The printing-machine illustrated in the drawings has an impression-cylinder, 20, whose shaft 22 is mounted to turn in journals adjust: ably secured in the side frame, (see. Fig. 4,) which cylinder cooperates with a reciprocating type-bed, 2l, and though this type-bed is shown as driven by means of a crank, 32, on 7o the driving-shaft 33 and a rod, 3.4, thatcarries a toothed wheel, 35, which gears with a stationary rack, 36, secured to the bed-plate, and

,ina rack, 37, secured tothe under side ofthe ,type-bed. Itis to b e understood thatthis method of reciprocating the type-bed is a common one, and `is only used here as illustrating one .of the many common mechanismsfor produc` ingth e'reciprocatory movements ot'atype-bed.

As ordinarily constructed stop cylinder 8O printing-machines have-their impression-cylindersprovided with a mutilated gearwheel secured to the cylinder, which wheel passes out of gear with the bed-rack at the end ofthe .printing-run of the latter, and is automatically 8 5 rre-engaged with said rack at the beginning of the printing-run of the bed, andsaid cylinder' is held stationary during theinking-run of the bed when its rack travels past the mutilated portion of the cylinder-wheel, andvthis is accomplished by mechanism which not only arrest the movement of the cylinder, but operates` to start'the cylinder-wheel and throw its teeth into gear `with those of the bed-rack. This operation necessitates the ungearin g and regearing of the cylinder wheel and rack, which operation requires nice adjustment, accurate operation, and-is practically injurious, not only from the wear of the parts it occasions, but by reason of the jarring action it roo causes to the machine. These defects are all remedied by the presentimprovemzents, which are to he understood as applicable to all stopcylinder presses, without regard to the structure of mechanisms reciprocatingthebed, which improvements will now be particularly described.

The cylinder-wheel 30 is mounted upon the.

cylinder-shaft 22 of the machine so'as to run' loosely thereon, and meshes with the bed-rack 31. This ,cylinder-wheel is a perfect wheel, and its teeth remain at all times in gear with the bedrack, and consequently, since the rack reciprocates, it tukrns back and forth, as the case may be.

The impression-cylinder 20 is fast upon its shaft 22, and is provided with a'peculiar mechanism for coupling it to the side'frame when it isr desired to arrest its movement, and for coupling it to the cylinder-wheel when itis desired that it sha1-l rotate. To this end the cylinder 20 is uprovided with a longitudinal shaft, G, mounted to rock` in proper bearings in the cylinder, which shaft'carries at one end a hooked arm, 11. This shaft is held normal-ly in the position shown in Figs. 2 to6by means ot" a spring, 15, that bears upon the jawed clasp 13.` When in this position said j'awed clasp engages with the st'op 9, projecting inwardl y from the wheel 30,( see Fig. 4,) and when so engaged it is obvious that the cylinder 2() and its wheel 30 will be coupled together and cause both to move in unison, as in Figs. 5l and 6. The hooked arm 11 co-operates with'aswinging jaw, 12, that is pivoted to the side frame (see Fig. 4) and provided with a connecting-rod, 16, that is reciprocated by means ofa cam, 17,y mounted uponthe driving-'shaft 33, or otherwise properly rotated to reciprocatesaid rod 16, and thus swing said jaw 12 from the position shown in Fig. 5 to that shown in Figs. 7 and 9.

When thisjaw 1,2 is raised, as in Fig. 7, it eugages the arm 11 and raisesv the same, thereby rocking the shaft 6 against the pressureof the spring y15, and raises the'jaw-'clasp 13 out of engagement with the stop 9,' as i-n Fig. 8, thereby simultaneously arresting the movement of the cylinder 20 and uncoup'ling. the wheel 3() therefrom, Aso as to permit its idle rotative movement, as in Figs. 9 yand 10. When the hed and cylinder, after giving an impression, have about arrived at the end of their printing movement, as in Figs. 2 to 4, the high' part of the cam 17 comes into operation to reciprocate the rod 16, and thereby swing theja'w 12 upward to engage the h oo'ired arm 11,'which travels with the cylinder, thus" stopping the cylinder and lit'tingsaid arm 11, rocking the shaft 6, thereby raising thev jaw'ed clasp 13 from engagement with the stopt), as in ,Figs 7 and 8,"thus simultaneouslystopping the cyl,- inder. and uncoupling 'the cylinderwheel, s0.

u that while the cylinder is caused to remainl at rest its wheel 30 is free to rotate, driven by the 'rack 31; as in Fig. 9, during the inking-'run of the bed.' At `the end of this inking-run or return-stroke of the bed the low part of the cam 17 causes the jaw 12 to swing downward, as in Fig. 2, thus disengaging the hoekscarln 1.1 and permitting the .i2-wed clasp 13l to drop under the impulseof the spring 15 and engage the stop 9, as in Fig.

3, by which action the cylinder 20 will be unlocked, and the wheel 30 will be simultaneously coupled thereto, so that during the printing-run of the bed then taking place said cylinder and wheel will be concertedly driven by rack 31, asin Figs. 5 and 6, and perform i the printing operation.

By this construction of devices the cylinderwheel and type-bed rack are maintained constan tlyin gear, so that no en gagin g and disengaging of their teethis necessitated, whereby accurate-fitting adjustment of thel mechanisms throwing the vtwo into and out of gear would be requlired,`and from which 'gearing and ungearingajarring action of the machine results. `An even" and Iregular movement of the parts is thus maintained, and nojarring or other irregular movement injurious to the production of tine printing isimparted by the gearing, which drives vthe impression-cylinder and type-bed in unison during such operation, and the wear of the gearing resulting from the old constructions, which interfered with the accuracy ofsuch united movement of the impression-cylinder and hed', is avoided.

It will he apparent that the loosely-runnin g cylinder-wheel and cylinder may be provided with other equivalent constructions of devices for coupling and uncouplin g the same, and for arresting the movement of the cylinder, and it is therefore to be understood that the same is embraced by this invention. l

' What I therefore claim is 1. The combination, with the type-bed and its rack, and the impression-cylinder andfits loosely-running toothed wheelprovided with the stop, as 9,l of the clasp, as 13, cam, as 17, and connecting devices, allv substantially as described.

2. The'combination, with the type-bed and its rack, and the .impression-cylinder andl its .loosely-running toothed wheel provided with a stop, as 9, of the'clasp, as 13, jaw, as 12, hool r,'as11, and means for simultaneously operating said clasp and jaw to uncouplean'd arrestand to release and Ycouple said cylinder and wheel, all substantially as described.

1in testimony whereof 1 `have hereunto set my handv in the presence of two subscribing witnesses.

" D.. VEOKERLIN.

Witnesses: Y v

(1114s. Y. CARPENTER., ERNEST Voonuls.

IOO

IIO 

